Question

A tank can supply water to a village for 40 days.However a leak at the bottom the tank drains out 10 litres per day, as result of which the supply last for 10 days less.For how many days will the supply last if the leak were to drain out 20 litres per day?

Answer 1

Step-by-step explanation:

Loss of 10 liters per day results in loss of 300 liters of water in 30 days. So, 40 - 30 = 10 days, making daily consumption of the village 300/10 = 30 liters per day. Thus the capacity of the tank is 30 ×40 = 1200L.

20+30 gives 50 liters per day. At this rate supply will last 1200/50 = 24 days.